Feed-water apparatus.



G. W. IVIOHR.

FEED WATER APPARATUS.

APP11cAT1oN F1111) Nov. 12, 1915.

1204,05@ Patented Nov. 7, 1911s.

3 SHEETS-SHEET I1 G. W. MOHR.

FEED WATER APPARATUS.

APPucATloN man Nov. 12. m15.

1,204,052., Patented Nov. T, 1916.

3 SHEETS-SHEET 2,

WITNESSES 5 /N l/. N TUR j( c www. n70, G. W M Uhr By ma Y G. W. MOHR.

FEED WATER APPARATUS. APPLICATION FILED Nov. I2. I9I-1.

1,204,052. Patented Nov. T, 1910'.

3 SHEETS-SHEET 3.

GEORGE WILLIAM MOHR. 0F`JEBSEY CITY, NEWJERSEY.

FEED-WATER APPARATUS.

Specification of Letters Patent.

Patented Nov. '3, 1913.

Application led November 12, 1915. Serial No. 61,083.

T o all whom t may concern Be it known that I, GEORGE W. Mona, a citizenof the United States, and a resident of Jersey City, in the county ofHudson and State of New Jersey, have invented a new and ImprovedFeed-Water Apparatus, oi which the following is a full, clear, and exactdescription.

The object of the invention is to provide a new and improved feed waterapparatus more especially designed for automatically andperiodicallyfeeding heated water under pressure into a boiler or other generatorwithout any waste ofthe steam or other fluid motive'agent or the use ofany lubricant.

In order to accomplish the desired result, use is made of a tankprovided with a source of water supply for charging the tank with Ywater, a steam supply pipe connected with a steam compartment of aboiler or generator which is to be fed with heated water, a deliverypipe leading Jfrom the said tank for draining water therefrom into saidboiler or generator, balanced twin valves within the tank, of which onecontrols the said steam supply pipe and the other controls'the saidwater delivery pipe, and a float controlled mechanism connected with thesaid twin valves for automatically and simultaneously opening andclosing the said twin valves.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part ofthisspecication, in` whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the `feed water apparatus as applied,the tank being shown in section; Fig. 2 is an enlarged side elevation ofthe feed water apparatus with the tank and parts of the valve mechanismshown in section; Fig-3 is a sectional plan view of the same on the line3-3 of Fig. 2; Fig. 4 is an enlarged cross section of the same on theline 4-4 of Fig. 2; Fig. 5 is a similar view of the same on the line 5-5of Fig. 3; and F ig. 6 is an enlarged face view of a portion of thestrainer for straining the outflowlng water.

A suitably constructed closed tank 10 is supplied with vwater from awater supply pipe 13 connected with a water heater or other source ofheated water supply and the tank 10 is supplied with steam from thesteam compartment or dome of a boiler or other `generator 16 by way of asteam supply pipe 18 and the accumulated water within lthe tank 10 isallowed to flow periodically into the water compartment of the boiler 16by way of 'a water delivery pipe 15, as hereinafter more fullyexplained. The pipes 13, 15 and 18 are provided with suitableostrainers17 and with valves 70, 71 and 67, respectively, and the pipe-13 is alsoprovided with a check valve 14 intermediate the tank 10 and the valve toprevent return ow of the water from the tank in the pipe 13.

Within the tank 10 is arranged a floatcontrolled twin valve mechanismfor automatically controlling theI simultaneous in llow of the steam andthe outflow of the water, and this valve mechanism consists essentiallyof twin valves 20 and 22 having a common stem 21 slidable up and down ina Valve body 23 provided at its upper and lower ends with valve seats 38and 34 opening in the same direction and adapted to be simultaneouslyopened and closed by the twin valves 2O and 22. rlhe lower valve seat 34connects with the water delivery pipe 15 and the upper valve seat 38connects with the steam supply pipe 18. The valve stem 21 is providedwith a reduced portion 39 to provide a chamber 8O in the valve bodydirectly below the valve seat 38 to allow the steam to pass from thepipe 18 by way of the valve seat 38 into the chamber at the time thevalves 20 and 22 areY open. steam passes from this chamber by way of ashort upwardly extending pipe 19 into the tank 10 near the top thereof.

The valve body 23 is provided with water outlets 36 immediately abovethe upper end of the lower valve seat 34 so that the water can flow fromthe tank 10 by way of the outlets 36 and the valve* seat 34 to the waterdelivery pipe 15 whenever the twin valves 2O and 22 are in openposition. 1n order to prevent sediment or other'extraneous matterfromobstructing or impeding the movement of the valve 22, use is made ofa sectional strainer 35 surrounding the valve body 23 and extending overthe outlets 36.

The Itwin valve 20, 22 is controlled in its opening and closing movementby a ioat controlled mechanism arranged as follows: 0n the valve stem 21are formed rack teeth 24 in mesh with a pinion 26 rotating on a shortshaft 32 mounted in brackets 33 formed integrally with and projectingsidewise from the valve body 23. The gear wheel 26 is in mesh with asegmental gear wheel 27 formed on the fulcrum end of a The y float arm28 provided at its free end'with a float 29 of any approvedconstruction. The float arm 28 is mounted to swing on a pivot 30 held ona standard 31 bolted or otherwise attached to the base plate 25 boltedor otherwise attached to a foundation 81 fastened by rivets or othermeans 82 to the bottom of the tank 10, as plainly indicated in Fig. 4.The float arm 28 is mounted to swing up and down inal guide 48 bolted orotherwise fastened to the base plate 25. In order to retain the floatarm 28 in its extreme upper and lower position use is made of aretaining means arranged as follows, special reference being had toFigs. 3 and 5: The float arm 28 is held in uppermost position (seedotted lines in Fig. 5) by a latch 40 and is clamped in place when inlowermost Vposition by a clamping lever 41, as shown in full lines inFig. 5. The latch 40 is mounted to swing transversely on a pivot 42 heldon the rear member of the guide 48. The upper end of the latch 40 isprovided withpa shoulder 47 for the under side of the arm 28 to rest on,as indicated in dotted lines in Fig. 5, and the said latch 40 is alsoprovided at its free end with a fork 46 into which projects a finger 45formed on a dog 43 fulcrumed on a pin 44 held on the rear member of theguide 48. The forward movement of the latch 40 is limited by a stop 83formed on the rear member of the guide 48, and the rearward movement ofthe latch 40 is limited by a stop pin 84 attached to the said rear guidemember.

The clamping lever 41, previously mentioned, isv fulcrumed on a pivotpin 56 attached to the rear member of the guide 48, and the said lever41 is adapted to engage the rear face of the arm 28 to press the frontface thereof against the front member of the guide 48 to securely clampthe arm 28 temporarily in position in the guide 48, as illustrated inFig. 5. The rear end of the lever 41 is pivotally connected by a link 55with a trip lever 52 having its pivot 53 mounted in a bracket 54 formingpart of the guide 48. The downward swinging movement of the clampinglever 41 is limited by a stoppin 57 on the bracket 54.

In order to swing the latch 40 from under the arm 28 and to release thearm `from the lever 41, the following releasing device is provided: Afloat lever 49 is fulcrumed on a standard 50 bolted or otherwiseattached to the base plate 25, and one end of the float lever 49 isprovided with a Heat 51 of any approved construction, and the other endof the said float lever 49 extends between;

swinging motion to the trip lever v52 whereby the clamping lever 41 isswung into the position shown in dotted lines in Fig. 5, thus releasingthe float .arm 28 to allow the iioat 29 to rise in the accumulatedwater. The float arm 28 in its-upward swinging movement engages thelatch 40, which latter holds the arm 28 locked in uppermost position, asindicated in dotted lines in Fig. 5. When the water falls in the tank 10the float 51 sinks and in doing so its oat lever 49 engages the dog 43and swings the same upward thus causing the linger 4 5 to swing thelatch 40 from under the arm 28 to release the latter and allow the sameto swing downward to lower-most position.

In order to counterbalance the arm 28use is made of a counterbalancinglever 59 fulcrumed on a standard 60 rising from the base of the guide48, and the right-hand end of the lever 59 is provided with anadjustable weight 58 and its other end is provided with a pivoted latch61' adapted to engage a shelf 63 attached to or formed on the arm 28.The downward swinging movement of the weighted end of the lever 59 islimited by a set screw 62 carried on the standardvGO.

The tank 10 may be pre-heated and for this purpose use is made of abranch pipe 64 connecting the steam supply pipe 18 with the tank 10 andfrom the bottom of the latter leads a drain pipe 66 for carrying olf thewater of condensation from the tank 10.

The pipes 64 and 66 are provided with' suitablevalves 68 and 69. An aircock 65 is attached to the top.- of the tank 10 to allow escape of airfrom the tank, as hereinafter more fully explained. When it is desiredto pre-heat the tank 10 the valves 67, 70 and 715 water of condensationin the tank lO'mayl now'be drained out by opening the valve 69. Thevalve 69 is. then closed. The tank 10 isv preferably prefheated,however, by hot water from the pipe 13 and for this purpose the valves67, 68 69 and 71 are closed and the valve 70 and thecock 65 are openedto allow water to flow from the pipe 13 into the tank 10 and to allowescape of air from the tank by way of the cock 65 The valve 69 is -neXtopened to drain out the water that is cold and when this has been donethe valve 69'is'fclosed to allow hot water to accumulate in the tank 10.The valves 67 and 71 are then opened and the air cock 65 is closed. i Y

ioo

Presuming that the twinv valves 20, 22 are closed and the ioat arm 28 islocked in lowermost position and the water accumulates in the tank 10,then the oat 51 rises and when it reaches predetermined position itsfloat lever 49 engages thetrip lever 52 and vided with a gage 11 toenable the operator` moves the clamping lever 41 out of engage w toAiobserve the rise and fall of the water ment with the iioat arm 28 thusreleasing the latter to allow the float 29 to rise. When the float arm28 swings upward it engages the latch 40 which latter holds the floatarm in raised position. The upward movement of the float 29 causesopening of the twin f valves .20' and 22 whereby the accumulated waterin the tank 10 can flow out of the same into the boiler 16 by way of theoutlets 36,

open valve seat 34 and pipe l5, and'at the same time steam passes intothe tank 10 by way of the pipe 18, open valve seat 38, compartment 80and pipe 19. '.The float 51 falls with the outflow of the water in thetank 10 and when the float 51 moves into lowermost position the arm 49imparts a swinging motion to the dog 43 to swing the latch 40 out ofengagement with the arm 28 thus allow-l ing the latter to swing downwardto lowermost position whereby the twin valves 20, 22 are returned toclosed position on the seats 38 and 34 thereby stopping the outflow ofthe water and the inflow of the steam from the tank 10. When the arm. 28moves into lowermost position as above described it is engaged by theclamping lever which locks the float arm 28 against upward movement.During the downward swinging movement of the ioat arm 28 its shelf 63engages' the latch 61 so that the float arm 28 is counterbalanced and aswinging motion is given to the counterbalancing lever 59 and when thefloat arm 28 moves nearly into lowermost position its shelf 63 glidesover the latch 61 thus allowing return movement of the counterbalancinglever 59 and allowing the float 29 to move t0 lowermost locked position.The above described operation is then repeated, that is, the wateraccumulating in the tank 10 causes thefloat 51 to rise, and

when the float 51 reaches a predetermined position the arm 49 acts onthe releasing lever 52 to cause the clamping lever 41 to release the arm28. The latter now swings again upward to open the twin valves 20, 22for the escape of the water from the tank and for steam to again passinto the tank. It is understood that by this arrangement the twin valves20, 22 are balanced as the upper end of the valve 20 isexposed to thepressure of the steam in the rbojiler 16 while the lower end of thevalve 22 is exposed to the pressure 0f the water within the boiler 16and consequently the twin valve 20, 22 readily opens and closes andallows free flow of the water from the tank 10 into the boiler 16whenever the twin valves 20, 22 are in open position.

The tank 10 is preferably closed at one Y end and is provided with aremovable cover 12 at the other end for the insertion of the valvemechanism above described. The

within the tank.

Having thus described my invention, l claim as new and desire to secureby Letters Patent: l

1. A feed water apparatus, comprising a tank, a steam supply pipeconnected with and at the other end with the water delivery pipe, thevalve casing having connections at the upper and lower portions with thetank, and connected balanced twin valves mounted in the said casing andautomatically and simultaneously controlling the said steamy-"supplypipe and the said water delivery pipe, and a float controlled mechanismwithin the said tank for. controlling the said twin valves.

2. A feed water apparatus, comprising a tank connected with a source ofwater supply -for charging the tank with water, a steam supply pipeconnected with the steam compartment in the boiler or generator which isto be fed with heated water for supplying the tank with steam, a waterdelivery pipe connected with the said boiler or generator, a valvemechanism having a valve casing connected at one end with the said steamsupply pipe and at the other end with the water delivery pipe, the valvecasing having connections at the upper and lower portions with the tank,and connected balanced twin valves mounted in the said casing and ofwhich one controls the said steam supply pipe and the other controls thesaid water delivery pipe, and a floatcontrolled mechanism connected withthe said twin valves for automatically and simultaneously opening andclosing the said twin valves.

3. A feed water apparatus, comprising a tank connected with a source ofwater supply for charging the tank with water, a steam supply pipeconnected with the steam compartment in the boiler or generator which isto be fed with heated water for supplying the tank with steam, 'a waterdelivery pipe leading from the said tank for drawing the water therefrominto said boiler or generator, a valve casing within the said tank andhaving a steam inlet and a water loutlet intermediate the ends of thecasing, the latter being connected at one end with the said steamsupplyv pipe and at its other end with the said water delivery pipe,valve -seats at the ends of the said casing and valve seats opening intothe said steam supply pipe and the othervalve seat opening into the saidwater delivery pipe, twin valves controlling the said valve seats, and aioat-controlled mechanism connected with the said twin valves forautomatically and simultaneously moving the said valves into open orclosed position on the said valve seats.

4. A feed water apparatus, comprising a tank connected with a source ofwater supply for charging the tank with water, a steam supply pipeconnected with the steam compartment in the 'boiler or generator whichis to be fed with heated water for supplying the tank with steam, awater delivery pipe leading from the said tank for draining the watertherefrom into said boiler or generator, a valve casing within the saidtank and having a steam inlet and a water outlet intermediate the endsofthe valve casing, the latter being connected at one end with the saidsteam supply pipe and at its other end with the said water deliverypipe, valve seats at the ends of the said casing and opening in the samedirection, one of the valve seats opening into the said steam supplypipe and the other valve seat opening into the said water delivery pipe,twin valves controlling the said valve seats, a strainer on the saidvalve body and extending over the said water outlet, and aoat-controlled mechanism connected with the said twin valves forautomatically and simultaneously moving the said valves into open orclosed position on the said valve seats. Y

5. A feed water apparatus, comprising a tank connected with a source ofwater supply for charging the tank` with water, a steam supply pipeconnected with the steam compartment in ,the boiler or generator whichis to be fed with heated water for supplying the tank with steam, awater delivery pipe connected with the said boiler or generator, a valvemechanism having a valve casing connected at one end with the said steamsupply pipe and at the other end with the water delivery, pipe, thevalve casi-ng having connections at the `upper and lower portions withthe tank, and connected balanced twin valves mounted in the said casingand of which one controls the said steam supply pipe and the othercontrols the said water delivery pipe, a float controlled mechanismconnected with the saidl twin valves for automatically andsimultaneously opening and closing the said twin valves, retaining meansfor retaining the said float controlled mechanism at the extremes of itsoperating positions, and releasing means controlled by the water in thetank for releasing the said float-controlled mechanism.

6. A feed water apparatus, comprising a tank connected with a source ofwater supply for charging the tank with water, a

steam supply pipe connected with the steam compartment in the boiler -orgenerator. which is to be fed with heated water. for supplying the tankwith steam, a water delivery pipe connected with the said boiler orgenerator, a valve mechanism having a valve portions with thetank, andconnected balanced twin valves mounted in the said casing and of whichone controls the said steam supply pipe and the other controls the saidwater delivery pipe, a float actuated -lever connected `with the saidtwin valves for simultaneously opening and closing the same, retainingmeans adapted to engage the said float actuated lever, and a water iioatcontrolled member within the said tankfor releasing the said retainingmeans.

7. A feed water apparatus, comprising a tank connected with a source ofwater supply for charging the tank with water, a steam supply pipeconnected with the steam compartment in the boiler or generator which isto be fed with heated water for supplying the tank with steam, a waterdelivery pipe connected with the said boiler or generator, a valvemechanism having a valve casing connected at one end with the said steamsupply pipe and at the other end with the water delivery pipe, the valvecasing having connections at the upper and lower portions with the tank,and connected vbalanced twin valves mounted in the said casing and ofwhich one controls the said steam supply pipe and the other controls thesaid water delivery pipe a float controlled mechanism vconnected withthe said twin valves for automatically and simultaneously opening andclosing the said twin valves, retaining means for retaining the saidfloat controlled mechanism at the extremes of its operating positions,releasing means controlled by the water in the tank for releasing thesaid float controlled mechanism, and a counterbalancing means for thesaid Hoat controlled mechanism.

8. A feed water apparatus, comprising a tank connected with a source ofwater supply for charging the tank with water, a steam supply pipeconnected with the steam compartment in the boiler or generator which isto befed with heated water for supplying the tank with steam, a waterdelivery pipe connected with the said boiler "or generator, a valvemechanism having a valve casing connected at one end with the said steamsupply pipe and at the other end with the water elivery pipe, 'the valvecasing having connections at the upper and lower portions with the tank,and connected balanced twin valves mounted in the Said 68.8-

balancing lever Within the said tank and provided at its free end with apivoted latch, and means on the said float controlled mechanism engagedby the said latch.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

GEORGE WILLAM MOHR.

Witnesses:

WILLIAM J. JINDELA,

GEO.' C. L. MAS.

